Niantic posted information on their Valentine's Day event that is taking place. In the post, they mention a few Pokémon who will have increased spawn rates
Throughout the celebration, you’ll notice that Chansey, Clefable, and many other adorable pink Pokémon will be encountered more frequently in the wild.
Which other Pokémon fall other the "many other adorable pink Pokémon" category?
Also, as we saw during the Halloween event, there were undocumented Pokémon who had an increased spawn rate. Are there any undocumented Pokémon in this event who have an increased spawn rate?